I understand why you're worried about the lack of a period. I was on another web site about birth control, and a lot of women were talking about how quickly they got pg after getting mirena taken out. That is my only worry now, but so far I'm on the pill.
My period has finally slowed down, i think my moody behavior was just due to the constant heavy bleeding, but I'm feeling much better now. More energy, and face is clearing up. I can't wait to stop bleeding completly so i can take advantage of my returned sex drive as well!! I can't believe i felt so crapy for so long and thought it was just me. My whole family suffered! But now I'm back!! : )